Design Nomenclature / Physical Model Making

Chatter

Also called tool chatter, vibration marks

This entry has not been translated yet and is shown in English.

Self-excited vibration between tool and work that cuts a regular rippled pattern into the surface, and sounds like it. It is a rigidity problem, not a sharpness problem: the fix is a shorter tool, a tighter fixture, or a feed and speed that moves the cut off resonance. Never more force.

A turning tool projecting far from its holder, bowing away from the work and springing back. The regular scalloped ripple this cuts is drawn along the finished surface at even spacing. Beside it, the same tool choked up short in the holder leaves a smooth surface.

Not to be confused with

How this term connects

Climb cutFeed and speedFixtureMillingTear-outTurningChatter
Related Confused with